Method of making radiators.



W. H. LEGATE.

METHOD 0F MAKING RADIA'TORS.

APPLICATION FILED MAY 27, 191s.

1,170,915. Patented ,Feb.8,1916.l

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UNITED STA l i S WILLIAM H. LEG-ATE, OF HARTFORD, CONNECTICUT.-

METHOD F MAKING RADIATORS.

Specification of Letters Patent.

Patented. Feb. e, 191e.

Application filed May 27, 1915. Serial No. 30,756.

To all whom t may concern.'

Beit known that I, WILLIAM H. LEGA'I'E, a citizen of the United States, residing Aat Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Methods of Making Radiators, of which the following is a specification.

This invention relates to a method of making radiators.

The method can be practised with facility and ease and by it I can inexpensively produce a radiator which is light yet thoroughly strong, and the parts of which can be quickly and easily taken apart for any purpose. p y

The method involves other features of novelty and advantage which with the foregoing will be stated at length in the following description, wherein I will set forth'in detail that one of the several convenient forms of embodiment of the invention which I have selected for illustration in the drawings accompanying and forming part of the present specification. I do not restrict myself to this exact disclosure; I may depart therefrom in several respectswithin the scope of the invention defined ,by the claims 'following said description. if:

Referring to said drawings: Figure 1 is a perspective view of a radiator made in accordance with my method and involving my invention andas viewed from .the inside or back thereof. Fig. 2 is a front 'elevationof one side of said radiator. Fig. 3 isa vertical sectional view of the same. Fig.` 4 is a perspective view of a mold.fFig. 5 is a def tail -with parts broken away of a portion of a c'ore. Fig. 6 is a perspective View of a tubular-.member showing a way of removing the' core therefrom. Fig. 7 is a sectional elevation of a part of the body of the radiator with the incased core. Fig. 8 is a sectional view of a portion of the body ofthe radiator, and Fig. 9 is a similar view showing more of the body, the interior skin or coating not being shown in Fig. 9, but appearing in Fig. 8 for the reason that the latter is on a larger scale than the former.

Like characters refer to like parts throughout the several views, which it will be noted are o n different scales.

. A radiator made in accordance with a method involving my invention can be employed with utility in widely different con- \nections, although it is of particular aollillustrated in Dthe annexed drawings.

yin a general way by 7.

vantage when employed in conjunction with or forming part of the equipment of an automobile, providing as willbe understood, the necessary Water to keep the engine in a relatively cool condition. The radiator includes av body of grid-like tubular construction and a crown or head pan and a settling or base pan suitably associated together as will Hereinafter appear.A The body as I have termed it, is made through the intervention of a-coreof somegsuitable material such as a lead.y composition which can be easily fused,. for instance at a temperature of 202 degrees Fahrenheit.l This body has deposited upon it for instance, electrochemically, a metal which may be either copper or brass, the former being quite advantageous.v After the metal is deposited on the core, the core is removed, for instance by heat, leaving the grid-like tubular body,"

and when a lead composition is provided the lead will coat the interior of the tubular like body with aprotective skin.

With the foregoing general observations I will now describe moi-ein detail what is n1- tially or at some primary stage in the process I utilize a grid-like member which is of such character as to be vsubsequently removed from a body formed on it. If the external body be of copper, for instance, this grid would preferably be fusible. For example the grid-like core can advantageously consist of some lead composition which will fuse asalready. noted at about 202 degrees Fahrenheit. In Fig. 4 I have shown a mold 2 which is made of some suitable material, bronze answering satisfactorily in this respect. The sections of the mold have longitudinally extending channels .3 closed at their ends and transversely extending channels 4 intersecting the longitudinally extending channels, the channels in the mold sections matingsto produce passages fully circular in cross section. From the outside channels in the body section of the mold the bores 5 depend, these bores 5 being fully circular in cross section. The mold has the gate 6 into which the metal to vform a grid is poured. When the sections of Vthemold are closed together molten metal is poured into the mold by way of the gate 6, and it fills the spaces so as to produce a grid such as that denoted The mold and the grid therein have been shown of comparatively small size, this for economy in space and simplicity of illustration. It is a matter of fact however, that there may be any number of longitudinally extending and any number of transversely extending bars in a' ber of transversely extending bars or rods,

and although these are circular in cross section, it is not necessary that they be made in such shape, although such form is advantageous, in that no angles are presented in the body of the radiator in the length of the tubes thereof. In addition to the longitudinally extending and transversely extending rods or bars ofthe grid 7 there are projections as 9. As represented these pro jections 9 extend from the side bars of the -rid.

After the formation of a grid it is brought opposite a mating grid as shown for example in Fig. 7 with the flat ends of the projections 9 into abutment as shown on the left in Fig. 5,. When this is accomplished the projections are soldered or otherwise suitably united as shown on the right in Fig. 5 so as to produce a duplex grid. As a matter of fact there may be any number of these fusible grids connected together. The

, connected grids are then coated with the necessarymetal which is to form the tubular body of the radiator, and copper or brass answer satisfactorily in this respect, copper in fact being preferable. After the two 'grids 7 have been united, or after the sections of the fusible core have been connected together as it might otherwise be put, the

core is in readiness to be coated, for example by being immersed ina hot copper sulfate solution, copper being deposited electrolytically upon the core to the requisite thick# `ness, for illustration somewhere between twenty to forty thousandths ofanl inch thick. After the core is plated, it is taken.

from the bath and cleaned, subsequent to which it is put in an oven. and subjected to heat of approximately 202 degrees Fahren' heit, which melts thev core, the core in molten condition running from the tubular. body as shown in Fig. 6 which might be assumed to represent one of the longitudinally extending tubes 10 of the radiator body denoted in a general way by 11. There will be two series of s uch longitudinally or vertically extending tubes 10, one at the front and the other at the back o-f said body, the side tubes of the two series being united by connecting tubes 12. The longitudinally or vertically extendlng tubes 10 are connected by transverse tubes 13. As will be inferred there may be any desired number of these longitudinally extending tubes 10 and the same observation applies with respect to the transversely or laterally disposed tubes 13. In like manner it is not essential that the connecting tubes 12 as I have termed them connect the side tubes of the front and rear series of tubes, although this construction is desirable. The radiator body 11, as will be clear, comprises a front tubular grid and a rear tubular grid in communication with each other by way of connecting tubes, all the tubesin fact being in communication with each other to provide for the proper circulation of the cooling liquid which when the radiator is used on an automobile would be water under ordinary circumstances. While the longitudinally and transversely extending and connecting tubes of the body 11 are disposed at right angles to each other, this may not always be necessary. It will be clear that allvthe tubes when a fusible core is utilized in the formation of said body, are interiorly coated with the fusible material, sutlicient of the material remaining for this purpose. Fig. 9 represents a portion of the body 11. The tubes are not shown coated, the coating being omitted on account of the smallness of scale of this particular view. Fig. 8 is on a larger scale and shows the coating in the tubes of the body. The interiorly coated shell-like or hollow body is now in readiness for assemblage with the remaining parts of the radiator. In addition to the body 11, said radiator comprises. a base or settling tank or pan 14; and a crown tank or pan 15. The

upper or head tank is provided with a discharge nipple or tube 16 adapted to be connected in/some suitable way with the water space of the engine, this water space delivering in turn throu h suitable connections with the nipple o-r tu e 17, the water after it has exercised its function. This nipple or tube 17 is connected with the base or settling tank 14. The upper tank 15 is provided with the removable screw-threaded cap 18 such as is commonly used in automobile radiators, and in addition is provided with the\customary overflow pipe 19.

The lower pan 14 and upper pan 15 are usually cast integral, their inner walls being perforated near the front and rear thereof to receive the upper and lower terminals of the longitudinally extending rods 10 of the reticulared or foraminous hollow or tubular body 11, said terminals being soldered or welded or otherwise secured -in the respective perforations. Preferably formed integrally with the lower pan 14. are the side members 2O of practically duplicate construction and which present in fact the sides of the radiator. lThe ends of the upper pan or tank 15 are rabbeted or channeled as at 21 to receive the upper ends of the side members 20,

iis

' three parts.

pan l to aid in upholding the pan, theianges overlying the front of the radiator body 11 at the sides thereof. The upper ends of the side members it will be noticed abut against the tops of the rabbetsI 21 to further aid in upholding the pan l5. It

will be clear, therefore, that the flanges 24 are not coextensive with the side members 20 but extend short ofthe upper ends thereof. It will be clear that there is a radiating surface of considerable exten-t.

lThe radiator is light yet possesses unusual strength.l It consists practically of merely It can be easily taken apart for repair or other purposes. Water can freely circulate longitudinally and laterally of the body l1 uniformly reaching all parts thereof. Owing to the construction of the body there isprovision for thorough circulation of air therethrough to aid in maintaining' the water cool. What I claim is:

l. A method of making radiator bodies comprising the formation of two grid-like cores, each having longitudinally and transversely extendmg bars, then connecting the i two cores with a space therebetween, then depositing a metal on both -t-he cores, and

then removing the cores from the exterior structure.

2. A method of making radiator bodies comprising the formation of two grid-like cores having projecting means, then uniting the projecting means to form two connected cores, then depositing a metal on the cores, and then removing'the cores from the exterior structure.

3. A method of making radiator bodies comprising the formation of two gridlike cores, each having longitudinally and transversely extending bars and each also having projections extending inward from the barred portion thereof, then uniting the projections, then depositing a metal on the two` cores and on the connected projections, and then removing the cores and said projections from the exterior structure.

4. A method of making radiator bodies comprising the formation of fusible gridlike cores leach having longitudinally and transversely extending bars and also having projections extending inwardly from thef barred portion thereof, uniting said projections, then electrolytically completely enveloping said longitudinally and transversely extending bars with a metal between the ends thereof and also enveloping said projections, and then removing the core by heat from the exterior structure.

In testimony whereof I aiix my signature in presence of two witnesses.

WILLIAM H. LEGA'IE.

Witnesses:

l HEATH SUTHERLAND,

L. L. MARKEL. 

